430968639 has 4 divisors (see below), whose sum is σ = 574624856. Its totient is φ = 287312424.

The previous prime is 430968613. The next prime is 430968667. The reversal of 430968639 is 936869034.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 430968639 - 2¹² = 430964543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430961639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71828104 + ... + 71828109.

It is an arithmetic number, because the mean of its divisors is an integer number (143656214).

Almost surely, 2^430968639 is an apocalyptic number.

430968639 is a deficient number, since it is larger than the sum of its proper divisors (143656217).

430968639 is a wasteful number, since it uses less digits than its factorization.

430968639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143656216.

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 430968639 is about 20759.7841751787. The cubic root of 430968639 is about 755.3505610013.

The spelling of 430968639 in words is "four hundred thirty million, nine hundred sixty-eight thousand, six hundred thirty-nine".